E9 Error Code (Quantum Series)Updated 23 days ago
Introduction
The "E9" error code indicates the intelligent power module (IPM) or compressor driving control is operating abnormally.
This article is for the following systems:
- Quantum Fresh High-Wall (WYT-FA)
- Quantum Hyperformance High-Wall (WYT-25)
- Quantum Ultra Ceiling Cassette (CYT-24)
- Quantum Ultra Ducted Ceiling Concealed (RYT-24)
- Quantum Ultra Floor-Ceiling Flex (UYT-24)
- Quantum Ultra High-Wall (WYT-24)
If the system stops operating for IPM protection six times consecutively, it will display the error code. The system can't be recovered for operation, except by pressing the On/Off button.
